As much as V likes to make games, they must make money. The PC is only a viable gaming platform due to it's technological superiority. Aside from that it's expensive and, to some, complex. For developers to make a product that is financially viable, they usually need to develop across multiple platforms. This also means added time and pay for the dev team, so they really cannot afford to make each version significantly different aside what is required for smooth play on each system.
If an FS3 is ever made, expect it to be pretty and simplefied. Imagine mapping FS2's controls to an XBox 360 controller. You could map the major controls, but not all of them, so decreased control over targeting and communication will occur if a more intuitive system is not devised.